developmental regulator for which the innovations leading to a vascular function are clearly correlated with the emergence of vascular plants. Thus, while cell division alone is likely not the only driver, it might have been an important evolutionary innovation enabling the emergence of vascular plants. Abstract: Vascular plants provide most of the biomass, food, and feed on earth, yet the molecular innovations that led to the evolution of their conductive tissues are unknown. Here, we reveal the evolutionary trajectory for the heterodimeric TMO5/LHW transcription factor complex, which is rate-limiting for vascular cell Arabidopsis thaliana proliferation in . Both regulators have origins predating vascular tissue emergence, and even terrestrialization. We further show that TMO5 evolved its modern function, including dimerization with LHW, at the origin of land plants. A second innovation in LHW, coinciding with vascular plant emergence, conditioned obligate heterodimerization and generated the critical function in vascular development in Arabidopsis . In summary, our results suggest that the division potential of vascular cells may have been an important factor contributing to the evolution of vascular plants.

Lu, T., Li, Z., Hou, D., Xu, Z., Ban, X., Zhou, B., 2020. Experimental and numerical evaluation of surfactant- nanoparticles foam for enhanced oil recovery under high temperature. Energy &Fuels 34, 1005-1013.

https://doi.org/10.1021/acs.energyfuels.9b03000 In this article, experiments and simulations were conducted to evaluate performance of surfactant-Nanoparticles foam for enhanced oil recovery under high temperature. Experimentally, the displacement behavior of surfactant-Nanoparticles foam for enhanced oil recovery was studied by micromodel tests at 90 °C. The recovery performance of surfactant-Nanoparticles foam flooding was analyzed by sandpack flooding experiments at 150 °C. Theoretically, a mechanistic model of surfactant-Nanoparticles foam flooding was constructed. The micromodel tests indicate that the surfactant-Nanoparticles foam was more stable than that of the surfactant foam in the porous media at 90 °C. The surfactant-Nanoparticles foam could accumulated in the pores with less oil and increase the swept area. The crude oil could be emulsified into oil droplets by surfactant- Nanoparticles foam which can greatly enhance the oil recovery. The sandpack flooding results show that the surfactant-Nanoparticles foam had better recovery performance at 150 °C. Compared with the surfactant foam, the surfactant-Nanoparticles foam produced from the sandpack flooding experiment had a smaller average particle size and higher sphericity. A mechanistic model of surfactant-Nanoparticles foam flooding was constructed. A good match was achieved between the numerical simulation and sandpack flooding experiments in terms of pressure and oil recovery by adjusting the model parameters. The simulation study indicates that the performance of surfactant- Nanoparticles foam flooding is better than that obtained by surfactant foam flooding under high temperature.

Luan, Y., Liu, B., Hao, P., Zhan, K., Liu, J., 2020. Oil displacement by supercritical CO in a water cut dead-end 2 pore: Molecular dynamics simulation. Journal of Petroleum Science and Engineering 188, 106899.

http://www.sciencedirect.com/science/article/pii/S0920410519313130 Exploitation of residual oils from the micro/nanopores in the reservoir is one perpetual goal of Enhancing oil recovery (EOR), which presents a big challenge for both advanced technologies and fundamental theories. In the current study, we make a comprehensive molecular dynamics (MD) simulation on the displacement process of trapped oils inside a water cut dead-end pore driven by supercritical CO molecules. Firstly, the whole 2 displacement process is fully demonstrated by snapshots of MDsimulation. Next, the collapse details of the water film between carbon dioxide and octane are simulated, where the hydrogen bonds and the evolution of ruptured hole are discussed. Thirdly, the configuration of the oil-water interface is computed and analyzed by the Laplace equation. Fourthly, the displacement mechanism of octane by carbon dioxide is explained according to the energy principle. These findings can strengthen our understandings on the details of the residual oil displacement in rocks, which may provide some inspirations on the oil recovery enhancement.